. what does the evolution of life on our planet tell us about the likelihood that alien civilizations exist? in the second of a two-part series, we will ask one of the originators of the dark matter theory, dr. joel primack and nancy ellen abrahams. >>> this is the second session with two extraordinary people, nancy abrahams wosay lawyer, a song writer, a spouse, and the coauthor of this volume, which is quite breathtaking. the view from the center of the universe. discovering our extraordinariy place in the cosmows. a new book. -- cosmos. highly placed and the coauthor is sitting right here, his name is joel preand he is one of the world's most successful and recognized cosmonthlygists, astro first cysts. and this is a tour of the universe benefiting by the extraordinary breakthroughs of a series of telescopes, the head of which is the leading telescope is the hubble telescope which is still functioning. now, the hubble is a product of nasa. so you must have high regard for nasa? is that deminished in any way? >> all of us scientists are enormously grateful for the government of the